20943171

素因数分解:

$3^3\times {\mathrm{59}}^1\times {\mathrm{13147}}^1$

素因数の和:13215

約数の個数: 16

約数和(自身を含む): 31555200

約数和(自身を除く): 10612029

約数列:

[1, 3, 9, 27, 59, 177, 531, 1593, 13147, 39441, 118323, 354969, 775673, 2327019, 6981057, 20943171]

約数ペア:

[(1, 20943171), (3, 6981057), (9, 2327019), (27, 775673), (59, 354969), (177, 118323), (531, 39441), (1593, 13147)]